Stocks that moved substantially or traded heavily Thursday on the New York Stock Exchange and Nasdaq Stock Market:
Goldman Sachs Group Inc., down $5.13 at $142.75
The investment bank was downgraded by Standard & Poor's and prominent banking analyst Richard Bove on regulatory concerns.
Forest Oil Corp., up 41 cents at $30.88
The energy company is planning an initial public offering of its natural gas exploration unit, Lone Pine Resources.
State Street Corp., down 36 cents at $46.52
The SEC is investigating whether the bank overchanged government pension funds on foreign exchange transactions.
Cisco Systems Inc., down 85 cents at $16.93
The networking gear maker's weak outlook alarmed investors and it plans to cut thousands of jobs to trim costs.
Clearwire Corp., down 74 cents at $3.99
Chip maker Intel, one of the wireless broadband company's largest stockholders, plans to sell up to 10 million shares of its stake.
Symantec Corp., up $1.01 at $20.42
An analyst said the maker of Norton computer security software was in a "slow transition back to growth mode" as revenue climbed.
First Solar Inc., up $7.77 at $132.07
The Department of Energy says three of the solar energy company's plants are a step closer to winning U.S. government loan guarantees.
Arctic Cat Inc., down $1.59 at $14.07
The snowmobile maker posted a quarterly net loss and its profit forecast for the coming year fell short of analyst estimates.